Analysis

  • max time kernel
    1201s
  • max time network
    1202s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • submitted
    01-11-2021 18:15

General

  • Target

    Setup.exe

  • Size

    403KB

  • MD5

    d1b2c8ddca2f8dd02e2c132153055084

  • SHA1

    21c011ac7406eef048c175f5887e4eb885c050d6

  • SHA256

    506c2f513d64242fcb20ccff8c26c0ed1755fe9120b984c29ba224b311d635c3

  • SHA512

    ab73df911df41235159341cc8fefed284a3f9720f241b51dfe2db2ac415b3438d5fbbeacfa980a61d402edc64afeda87447ccda49b7d279fba524036e9287594

Malware Config

Signatures

  • Modifies Windows Defender Real-time Protection settings 3 TTPs
  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Setup.exe
    "C:\Users\Admin\AppData\Local\Temp\Setup.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1088
    • C:\Users\Admin\Pictures\Adobe Films\FccSxY_k25POfyxBYrrT80qo.exe
      "C:\Users\Admin\Pictures\Adobe Films\FccSxY_k25POfyxBYrrT80qo.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      PID:1808
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1088 -s 1464
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:1912

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1088-55-0x00000000758C1000-0x00000000758C3000-memory.dmp

    Filesize

    8KB

  • memory/1088-56-0x0000000003D80000-0x0000000003ECA000-memory.dmp

    Filesize

    1.3MB

  • memory/1912-61-0x0000000001DF0000-0x0000000001DF1000-memory.dmp

    Filesize

    4KB